经过(guo)阅读源(yuan)码,其实不少思路(lu)和Android的匿(ni)名内存(cun)有点(dian)相(xiang)似阅读本文(wen)之(zhi)前就(jiu)算(suan)不知道dma_buf的设计(ji)思想也(ye)没关系,我不会仔细到每一行,我(wo)会注重其(qi)在gralloc服(fu)务中(zhong)的申(shen)请流程,看看(kan)ion是如何管理共(gong)享内存,为(wei)什么(me)要抛(pao)弃ashmem我们
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